An 11-year-old Brooklyn boy on a Yeshiva field trip died yesterday at a Canarsie swimming pool, police said.

Dovid Moskowitz was playing with 23 other kids in the pool at the Hebrew Educational Society on Sea View Avenue at about 2:45 p.m. when a lifeguard spotted him lying face-down in the water, police said.

The lifeguard pulled the boy out of the pool and administered CPR while others called 911, police said.

But Dovid, who lived with his parents on East 2nd Street in Borough Park, could not be revived and was rushed to the Pediatric Intensive Care Unit at Brookdale Hospital, where he was put on life support.

Doctors’ efforts to save him were not successful, and he was declared dead at 7:15 p.m.

Police said it was not immediately clear if Dovid drowned or suffered some other medical problem.

“He was a very friendly and outgoing boy,” said neighbor Sender Berkowitz.